Paris

John Baez

December 13-23, 2004

I'm a big fan of the mathematician Larry Breen, and
especially his work on gerbes and stacks.
On December 15-17 there was a conference
called Arithmetic, Geometry and Topology
in honor of his 60th birthday. I was happy to be invited to speak -
especially because it was in Paris, which I'd never visited before.
So, I went to the conference, gave a talk,
and also took the opportunity to do a bit of looking around.

Here are some photos I took. You can learn more about Breen's work
in "week210" of my column This Week's Finds.